I recently encountered a couple of relatively important companies (which shall remain unnamed, sadly) selling and using Linux software, who to my utter shock were using Telnet pervasively and were mostly unaware of ssh. Perhaps this isn't surprising given that they also (ab)used VNC for remote access to Linux workstations.
This is not exactly related to FreeBSD, but here goes: Linux has gained a lot of ground, especially in the embedded arena, but with that also comes a lot of incompetence, and it is staggering. It is a far cry from what we might imagine on LWN. Merging with the mainline kernel - pfffft - nobody is even aware of a "mainline" or even "kernel". GPL - never heard of it. Some people actually do believe that you do not have to follow the GPL if you pay some amount of money to "Linux". WTF? It is all a disgusting mess of binary drivers and GPL violations.
Lastly, nobody actually uses Linux for development. Embedded software is developed on Windows with Visual Studio (not even Cygwin - nobody has heard of Cygwin) and only occasionally tested on Linux (in a VM of-course - Linux on actual hardware is scary). Binaries, shared libs, configuration files and even logs are all stored in the same directory in true Windows fashion. Of course shared libs exist multiple times (.so, .so.1, .so.1.2, etc) because nobody knows about symbolic links and they copied the files with Windows Explorer.
I am truly depressed. I hope I have observed an exception, but I doubt it.
On the bright side, it means more job security LWN readers :-)